local script to set laptop display gamma and brightness and also position docked displays (autorandr is reported to be better, but I have not looked for where it stores it's saved profiles)

dock.sh

#! /usr/bin/env nix-shell
#! nix-shell -i bash -p bash xorg.xrandr brightnessctl

CONNECTED_DISPLAYS="$(xrandr | grep "\sconnected" | awk '{ print $1 }')"
DOCK_LEFT="DVI-I-2-2"
DLF="0"
DOCK_CENTER="HDMI-0"
DCF="0"
DOCK_RIGHT="DVI-I-1-1"
DRF="0"

LOG="Connected Displays:"
for CD in $CONNECTED_DISPLAYS
do
	LOG+="\n  - "
	if [ "$CD" == "$DOCK_CENTER" ]
	then
		xrandr --output HDMI-0 --brightness 1 --gamma 0.7:0.7:0.7
		sleep 0.2
		DCF="1"
		xrandr 2>&1 >/dev/null
		LOG+="Center";
	elif [ "$CD" == "$DOCK_RIGHT" ]
	then
		DRF="1"
		LOG+="Right";
	elif [ "$CD" == "$DOCK_LEFT" ]
	then
		DLF="1"
		LOG+="Left";
	else
		LOG+="$CD";
	fi
done

if [[ "$DCF" == "1" && "$DRF" == "1" ]]
then
	LOG+="\nSetting DVI-I-1-1 to the Right"
	xrandr --output DVI-I-1-1 --mode 2560x1440 --right-of HDMI-0 --auto --brightness 0.6 --gamma 0.7:0.7:0.7
	sleep 0.2
	xrandr 2>&1 >/dev/null;
fi

if [[ "$DCF" == "1" && "$DLF" == "1" ]]
then
	LOG+="\nSetting DVI-I-2-2 to the Left"
	xrandr --output DVI-I-2-2 --mode 2560x1440 --left-of HDMI-0 --auto --brightness 0.6 --gamma 0.7:0.7:0.7
	sleep 0.2
	xrandr 2>&1 >/dev/null;
fi

if [ "$DLF" == "1" ]
then
	LOG+="\nSetting DP-4 to the Bottom"
	xrandr --output DP-4 --below DVI-I-2-2 --auto --brightness 1 --gamma 0.7:0.7:0.7;
else
	LOG+="\nSetting DP-4"
	xrandr --output DP-4 --auto --brightness 1 --gamma 0.7:0.7:0.7;
fi
brightnessctl --class=backlight s 40% 2>&1 >/dev/null

if [ "$1" == "--debug" ]
then
	printf "$LOG";
elif [ "$1" == "-d" ]
then
	printf "$LOG";
fi